Sleeping in on Saturday after a few weeks of too little shuteye may feel refresh

题文

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a fal n of curity.New rearch shows long-term sleep loss cannot be cured that easily. Scientists rearched the effects of short- and long-term sleep loss and found that tho who suffer long-term sleep loss may function normally soon after waking up, but experience steadily slower reaction times as the day goes by, even if they had tried to catch up the previous night.The rearch has important safety significances in an increasingly busy society, not just for shift-workers but for the roughly one in six Americans who regularly get six hours or less of sleep a night.“We know that staying awake 24 hours without sleep will affect your performance to do all sorts of things, and this effect equals to drinking too much when driving,” said lead rearcher Dr. Daniel Cohen of Boston’s Brigham and Women’s Hospital. But when tho who suffer long-term sleep loss become all-nighters, “the harm is incread ten times,” Cohen said.The National Institutes of Health says adults need ven hours to nine hours of sleep for good health. Regularly getting too little sleep increas the risk of health problems, including memory impairment and a weakened immune system. More immediately, too little sleep affects reaction times; sleepiness is to blame for car crashes and other accidents.It has critically important complicated and unexpected results for anyone who works “crazy hours” and thinks they are performing fine with a few hours of weeknight sleep, said Harris, director at New York’s Montefiore Medical Center. “Don’t think you can just bank up your sleep on the weekend, becau it doesn’t work that way,” he warned.小题1:The text mainly advis people ______.A．to sleep more timeB．to sleep in on SaturdayC．to sleep scientifically D．to sleep little on weekend小题2:People with long-term sleep loss ______.A．are quicker in thinkingB．may feel refreshed soon after waking upC．are surely energeticD．can have a strong n of curity小题3:What can we learn from the text?A．Most of the Americans get six hours or less of sleep a night.B．Staying up is wor for tho who suffer long-term sleep loss.C．Traffic accidents have little to do with sleepiness.D．One in six Americans are all-nighters.小题4:Which of the following is the immediate effect of long-term sleep loss?A．Health problemsB．Immune systemC．Reaction timesD．Memory impairment小题5:The underlined phra “bank up” in the last paragraph most probably means ____.A．pile upB．pick upC．add upD．build up 题型：未知难度：其他题型

答案

小题1:C小题2:B小题3:B小题4:C小题5:A

解析

略

考点

据考高分专家说，试题“Sleeping in on Satur.....”主要考查你对 [健康环保类阅读 ]考点的理解。 健康环保类阅读

健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。